Home / 11,812.28-17,718.44-11,090.57

Finding the Fourth Proportional to 11,812.28, 17,718.44 and 11,090.57

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Solution

The fourth proportional to 11,812.28, 17,718.44 and 11,090.57 is: 16,635.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.28 : 17,718.44 = 11,090.57 : x
  2. Step 2: Convert to fraction form
    11,812.28/17,718.44 = 11,090.57/x
  3. Step 3: Cross multiply
    11,812.28x = 17,718.44 × 11,090.57
  4. Step 4: Simplify right side
    11,812.28x = 196,507,671.13
  5. Step 5: Solve for x
    x = 196,507,671.13/11,812.28
  6. Step 6: Final answer
    x = 16,635.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.